Uddhav Thackeray proposes state-level app for registration for Covid-19 vaccination May 09, 2021 Maharashtra Chief Minister Uddhav Thackeray - PTI× Now, citizens have to register on the Centre’s CoWIN app Maharashtra Chief Minister Uddhav Thackeray on Saturday urged the Central Government to consider letting States develop their own apps for Covid-19 vaccination. In a letter to Prime Minister Narendra Modi, he has suggested developing state-level apps registration of citizens for Covid-19 vaccination. Currently, all citizens are required to register nationally on the Centre’s CoWIN app. “The vaccination drive in Maharashtra has been one of the fastest and most efficient with every stock of the vaccine that the Union Government has kindly supplied to the state at various times in the past few months,” he said in the letter.